treewide: Add MLSys collective paper developments #99

Draft

colluca wants to merge 77 commits intomainfrom

feature/reduction

Commits on Mar 6, 2026

cfg: Rename to `enable_narrow_collectives` in `snitch_cluster.json`

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cluster_tile.sv: Update name of `user_t` to `user_narrow_t`

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cluster_tile.sv: Add and tie off DCA interface

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iis-env.sh: Bump LLVM toolchain

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requirements.txt: Bump peakrdl-rawheader

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UNDO: Add separate SNRT_ENABLE_NARROW_REDUCTION

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bender: Bump `snitch_cluster` and `axi`

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sw: Initialize destination arrays in `dma_multicast.c`

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bender: Bump iDMA to include DMUSER instruction

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cfg: Set `enable_wide_collectives` in snitch_cluster.json

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hw: Pass cluster base offset to cluster tile

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sw: Integrate Lorenzo's microbenchmark
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python-venv: Install Snitch in editable mode

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dma_multicast.c: Fix missing `LENGTH` variable

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sw: Build Picobello's Snitch tests using Snitch's rules

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dma_multicast.c: Use `snrt_align_up` function

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make: Enable running simulations in different directories

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hw: Integrate updated parallel reduction support
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hw: Integrate virtual channel + offload reduction
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hw: Report destination address of collectives attempted in memtile

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experiments/mcast: Set up Python-based experiment infrastructure

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hw: Add two physical channels on wide_out interface to local port

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gitignore: Ignore `__pycache__` folders

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sw: Split runtime into impl and src folder

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sw: Add `pb_team` and `pb_sync` functions

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experiments: Add wide multicast experiments

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hw: Fix user width to carry full atomic ID

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experiments: Add barrier experiments

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sw: Extend mesh communicator to have an arbitrary base cluster

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sw: Add more complex barrier tests

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experiments: Extend `picobello.py` to support kernel experiments

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sw: Add `summa_gemm` kernel

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experiments: Add SUMMA GEMM experiments

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hw: Fix reduction + VC Read/Write

Raphael
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hw: Align with latest FlooNoC collective configuration
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hw: Add paramterization for internal offload cut
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hw: Adapt Picobello to multi ejection channels
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sw: Add Snitch BLAS headers to tests' include directory

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experiments: Add callback for hardware build

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sw: Enable communicator creation from arbitrary communicators

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experiments: Update barrier experiments

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hw(cluster): Increase atomic txns to 3

fischeti
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hw: Use manual floogen package

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experiments: Add wide reduction experiments

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bender: Bump common_cells
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Update plots for paper

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Update plots for paper again

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More fixes for the paper

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modify 2d reduction plot, also add the hyperbank reduction(tree not supported yet)

imchenwu
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Final amendments for submitted paper

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Fix bug in tree multicast model

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Clean reduction benchmark

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Bump dependencies

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Update software to new Snitch collective API

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Bump Snitch LLVM toolchain

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Remove legacy `dma_multicast` experiments

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Cleanup reduction experiments removing hw generic

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Fix lint error in picobello.py

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Cleanup summa_gemm data configuration

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Remove prints from `dma_multicast_v2.c`

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Add description in tests

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Rename dma_multicast_v2 experiments and benchmark

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hw: Adapt SoC to multiple physical channels
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hw: Align with credit based VC
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hw: Add UnstableValid VC implementation

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vsim.mk: Use `BENDER` variable

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hw: Align picobello with FlooNoC VC
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Fix setuptools
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Add experiments in CI
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ci: Reduce experiments size for CI usage
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Improve make flow
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Bump FlooNoC
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Align new floogen CLI
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Remove unused cfg par
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Bump floonoc without coll loopback option
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hw: Align with new offload interface
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hw: Enable multi phys for performance boost
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